Home / 26,020.20-39,026.34-8,490

Finding the Fourth Proportional to 26,020.20, 39,026.34 and 8,490

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Solution

The fourth proportional to 26,020.20, 39,026.34 and 8,490 is: 12,733.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,020.20 : 39,026.34 = 8,490 : x
  2. Step 2: Convert to fraction form
    26,020.20/39,026.34 = 8,490/x
  3. Step 3: Cross multiply
    26,020.20x = 39,026.34 × 8,490
  4. Step 4: Simplify right side
    26,020.20x = 331,333,626.60
  5. Step 5: Solve for x
    x = 331,333,626.60/26,020.20
  6. Step 6: Final answer
    x = 12,733.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.